MB8AA3020 The Fujitsu 20-port 10Gbps Ethernet Switch Chip

Featur es• Mature field proven architecture• 20-port 10Gbps switching operations at wire speed• 2 Gigabit Ethernet (GbE) management ports• On chip micro-engine for management• EEPROM interface used for initialization• 2 I2C interfaces• 2 MDIO interfaces• Integrated high-performance SerDes

– Integrated XAUI/CX4 SerDes for all 20 high speed ports– 10Gbps serial capabilities for all 20 high speed ports– Adaptive equalization eliminates the need for external

clock re-timer circuit in CX4 applications• 400+ Gbps of non-blocking switching capacity• Cut through switching mode for latency sensitive applications• Supports 8-classes of service per port• Strict or Deficit Round Robin used for priority scheduling• Committed and Peak Information Metering used for traffic

shaping• Ultra low pin-to-pin switching latency• Advanced class Ethernet features

– Priority PAUSE– Backward Congestion Notification (BCN) Support– Early packet drop congestion avoidance capabilities

based on Ingress and Egress buffer usage

• Layer 2 capabilities– Unicast and multicast forwarding, address learning and

aging– 16K+ MAC address table– Supports up to 16K jumbo frames– STP/RSTP/MSTP capable– Link aggregation (802.3 clause 43)– 802.3ae full-duplex operation using PAUSE flow control– VLAN table with 4K of VLAN (802.1Q) address– User programmable VLANs– Extended VLAN capabilities for up to 64 logical

partitions– Shared and Independent VLAN learning capabilities– Less MAC table consumption capabilities for IVL

• Layer 2+ features– IGMP and MLD snooping capabilities– DiffServ for IPv4 and IPv6

• Monitoring– Port and VLAN mirroring– RMON and SMON statistics counter– sFlow (RFC3176) support

• Port security filtering based on source MAC address• Low power consumption• Large 2.9MB integrated memory• 90nm technology• Small (35mm x 35mm) foot print

▼

10 GBE

XFP

XENPAK

MII/GMII MII/GMII

10G Serial

XAUI

XAUI

I2C

XAUI/10G Serial

20+2 Port Ethernet Switch• 20 x 10GBE Ports• 2 x 10/100/GBE Ports

MB8AA3020 Benef i ts▼

• High level of integration in a low-power, low-latencysmall-footprint package makes the Fujitsu 10GbE switchideal for backplane switch fabric applications

• Integrated, programmable, high-speed SerDes allows eachport to be either 10Gbps serial, XAUI or CX4 capable,giving system designers added flexibility

• 10Gbps serial capabilities enable the use of XFP moduleswithout requiring third-party SerDes chips. This reducesboard space, latency, cost and power consumption

• Backplane 10Gbps serial capabilities enable designers touse fewer physical backplane fabric connections

• Adaptive-equalization algorithm eliminates the need foran external re-timer circuit in CX4 cabling, saving boardspace, power, latency and cost

• Redundant Gigabit Ethernet ports gives users a high-availability, agonistic management interface that is nottied to any particular processor chip

• On-chip micro-engine increases flexibility and simplifiessoftware development, reducing time to market

Appl ica t ions▼

• Embedded, next-generation, high-density backplaneswitching applications

• Blade-server switching applications

• Advanced TCA carrier-board backplane fabricapplications

• microTCA MCH applications

• Low latency interconnects for cluster computing

Shared Memory

Statistics

RoutingTables

ManagementMicroengine

10 x 10GBE Ports 10 x 10GBE

Ports•••

•••

PRBS

AdaptiveEqualization

Pre-Emphasis

EqualizerXAUI

or 10GSerial

Tx

Rx

The Fujitsu 20-port 10Gbps Ethernet Switch ChipDescrip t ion▼

Fujitsu’s next-generation high-density switch chip embeds 20 high bandwidth, full-duplex 10 Gbps ports into a single,integrated, small-footprint package. Each port has theflexibility to support either 10Gbps serial, XAUI or CX4. In addition, the adaptive equalization capability on each portcan increase reach for XAUI, CX4 and 10Gbps serialapplications, as well as eliminate the need for external re-timer circuits, reducing board space, power consumptionand cost.

With 10Gbps serial capabilities on each port, theMB8AA3020 allows direct connection to optical XFPmodules on any port, eliminating the use of third partySerDes chips. This reduces board complexity, improves cost,and reduces time to market.

MB8AA3020 offers a total of 400Gbps of non-blockingaggregate switching capacity in both cut-through and store-and-forward mode of operation. A switching latency of300ns, including 10GbE SerDes in cut-through mode, makesthe switch ideally suited for high-density, latency-sensitiveapplications.

As a result of being fabricated with 90nm technology, theMB8AA3020 provides the lowest-power-consumptionhighest-density 10GbE switch chip in the industry, makingthe MB8AA3020 well suited for high density, low-powerapplications.

The Fujitsu MB8AA3020 20-port 10GbE switch chipprovides eight priority classifications per port, which allowspriority switching based on DiffServ, MAC address, VLANs,extended VLANs and ports. The MB8AA3020 also providesseveral carrier-grade Ethernet features including priorityPAUSE, backward congestion notification, and early-classwatermark capabilities for congestion notification. Thesefeatures in combination with its large buffer memory, allowthe MB8AA3020 to handle both best-effort and guaranteed-high-availability customer traffic in a single chip.

In addition to its standard 4K VLAN and Q-in-Q capabilities,the chip provides 64 additional user VLAN addresses, whichcan be used to logically partition a network without the useof Q-in-Q.

AMCSecurity

Chip

1 x 10GBE XAUI or1 x 10GBE Serial

+10/100/GBE

16 x 10GBE XAUI or

16 x 10GBE Serial

AMCTraffic

Manager

AMC

CarrierCard

NetworkProcessor

Processor

10GBE

10GBE

MB8AA3020

FUJITSU MICROELECTRONICS AMERICA, INC.Corporate Headquarters1250 E. Arques Ave. Sunnyvale, CA 94088-3470Tel: (800) 866-8608 Fax: (408) 737-5999E-mail: inquiry@fma.fujitsu.com Web Site: http://www.fma.fujitsu.com

© 2006 Fujitsu Microelectronics America, Inc.All company and product names are trademarks orregistered trademarks of their respective owners.Printed in the U.S.A. 10GE-FS-21186-6/2006

The MB8AA3020 possesses two 10/100/1000 Ethernetmanagement interfaces, which provide an agnostic interfaceto the chip, allowing it to communicate with any third-partyprocessor chip. The MB8AA3020 also supports I2Cinterfaces, MDIO interfaces and EEPROM interfaces for low-speed communication with third-party external devices.

The Fujitsu MB8AA3020 10Gbps 20-port Ethernet switchprovides an integrated on-chip micro-engine which executescommands sent by the Ethernet management interface. Thissimplifies software development, increases flexibility andreduces time to market.

The Fujitsu MB8AA3020 module is the industry’s mostadvanced, high-density switching architecture, providing a low-latency, low-power, feature-rich switch in a small form-factor footprint. The MB8AA3020 is well-suited for next-generation backplane fabric applications seen inAdvancedTCA, µTCA and blade server platforms.